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EN 1.7390 Steel vs. S82441 Stainless Steel

Both EN 1.7390 steel and S82441 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is S82441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
28
Fatigue Strength, MPa 310
400
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Shear Strength, MPa 440
490
Tensile Strength: Ultimate (UTS), MPa 710
760
Tensile Strength: Yield (Proof), MPa 480
550

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
1090
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.2
Embodied Energy, MJ/kg 23
45
Embodied Water, L/kg 69
170

Common Calculations

PREN (Pitting Resistance) 6.8
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190
Resilience: Unit (Modulus of Resilience), kJ/m3 600
740
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 20
21

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
23 to 25
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 91.9 to 95.3
62.6 to 70.2
Manganese (Mn), % 0.3 to 0.8
2.5 to 4.0
Molybdenum (Mo), % 0.45 to 0.65
1.0 to 2.0
Nickel (Ni), % 0
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.0050